Saturday's protest in the French capital was one of the most violent and gruesome since the movement began back in November 2018.
The man, 30, was treated in hospital after a French police grenade exploded as he tried to bat it away with his hand while rioters attempted to storm the national assembly in Paris.
Today, there have been more clashes between riot police and protestors on the street, with tear gas and grenades deployed.
Yellow vest protesters keep pressure on French President Emmanuel Macron's government, during demonstrations for the 13th straight weekend.
Some of the paramedics served as a barrier to stop media and demonstrators from getting too close.
Police say the demonstrator, whose condition isn't now known, is being treated by emergency workers.
"Every day the military. protects our compatriots from the risk of terrorism".
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We're thrilled for what's in store for her. " She is an incredibly valuable character and I'm really hoping she stays", he added. It's time once again to reflect upon the characters that we've loved - OK, in some cases, at best kinda put up with - and lost.
French Interior Minister Christophe Castaner has gone on Twitter to express his "disgust" as French yellow vest protesters set alight an anti-terror military auto at a protest in Paris. "These attacks are intolerable", Castaner said.
In the eastern city of Saint Etienne, eight police officers were slightly hurt during clashes with some protesters on the fringes of the march there, local police said.
The yellow vest activists, who have brought hundreds of thousands onto the streets over the past three months, are now trying to achieve electoral success but the movement is politically divided and has no appointed leader.
Yellow vest protesters walk down the famed Champs Elysees avenue to keep pressure on French President Emmanuel Macron's government, for the 13th straight weekend of demonstrations, in Paris, France, on February 9, 2019. Recent polls show Macron's approval ratings are rising.
"A Right-wing group of Yellow Vests attacked a Left-wing one, and the result was carnage", one protester who witnessed the confrontation told reporters, according to the Daily Mail Sunday.
The activists waved Latvia's red-and-white flag, shouting slogans like "the French have woken up, while Latvians remain asleep".
"The government has to come out of its virtual reality and enter the real world", said Annamaria Furlan, the head of the Italian Confederation of Workers' Trade Unions Cisl.